Pipe-covering



E. SPICER.

PIPE COVERING.

APPLICATION FILED NOV. 18, 1919.

1,363A%u Patented Dec. 28, 1920.

I q o" W EDWARD SPICER, 0F VANCOUVER, BRITISH COLUMBIA, CANADA.

PIPE-COVERING.

eeann).

I Specification of Letters Patent.

Patented Dec. 2%, 12 UL Application filed November 18, 1919. Serial No. 338,884.

T 0 all whom it may concern:

Be it known that I, EDWARD SPIoER, a subject of the King of Great Britain, and a resident of the city of Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Pipe-Coverings, of which the following is a specification.-

My invention relates to improvements in covering such as is used for steam or hot water or air pipes to prevent loss of heat due to radiation, and the object of my in vention is to provide a covering by the use of which loss due to this cause is entirely prevented instead of partially, as with coverings in use at the present time.

I attain this object by the construction illustrated in the accompanying drawings in which- Figure 1 is a perspective View of a portion of my covering, part of one end closure being removed.

Fig. 2 is a longitudinal sectional elevation taken through the center line of Fig. 1.

Similar figures of reference indicate similar parts in the views.

1 indicates a portion of pipe covering circular in form and split longitudinally as at 2. The covering is preferably made of asbestos, or other non-conducting, material and consists of corrugated layers 3 separated from each other by circular wrappings 4, from which it will be seen that parallel rows of separated longitudinal cells 5 are formed,

and this construction is found in one of the best known pipe coverings in. use at the present time. However, while the cellular construction is efficient as far as radiation from the pipe outward is concerned, it is ineflicient in respect to the ends of the covering because the cells heretofore have been left open, as shown at the broken away part in Fig. l, with the result that the heat passes longitudinally through the open ends of the covering. To obviate this and prevent such loss of heat I close the ends of each section of covering by means of closures 6 and 7 formed of any suitable substance, such as that of which the covering itself is composed, so that no heat can escape from the cells and thus the loss is prevented and a considerable economy effected.

What I claim as'my invention is A pipe covering comprising a split cylindrical bodyv portion adapted 1 to ,inclose a pipe and providing within said 'body portion superimposed rows of individuali longitudinally extending cells opening [at the ends of the bodies, and split ring shaped in- 1 i closures formed separately from the body and attached thereto to close the ends of said cells, said closures being of the same Width as the body and arranged flush with the inner and outer surfaces thereof.

Dated at Vancouver, B. C. this 5th day of November, 1919.

EDWARD SPICER. 

